Heap corruption via unterminated GLOBAL fields
Published Jun 16, 2026 · Updated Jun 16, 2026
Heap buffer overflow in stable-diffusion.cpp before master-584-0a7ae07 allows attackers to corrupt heap memory via a crafted .ckpt file. The GLOBAL opcode handler in src/model.cpp passes a failed newline search result of -1 to memcpy as the field length instead of rejecting the input. Exploitation requires an application or user to load an untrusted checkpoint and results in an out-of-bounds write that immediately corrupts heap memory.
Summary
What happened
Heap buffer overflow in stable-diffusion.cpp before master-584-0a7ae07 allows attackers to corrupt heap memory via a crafted .ckpt file. The GLOBAL opcode handler in src/model.cpp passes a failed newline search result of -1 to memcpy as the field length instead of rejecting the input. Exploitation requires an application or user to load an untrusted checkpoint and results in an out-of-bounds write that immediately corrupts heap memory.
The record
- CVE
- CVE-2026-47750
- Published
- Jun 16, 2026
- Updated
- Jun 16, 2026
- Vendor
- leejet
- Product
- stable-diffusion.cpp
- Classifications
- CWE-787, T1204.002
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 16, 2026CVE publishedPublication date reported by the CVE source.
- Jun 16, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=< master-584-0a7ae07
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
- GLOBAL opcode missing-newline checkpoint proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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